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  • Title: Long-term clinical outcomes of extracorporeal shockwave lithotripsy in painful chronic calcific pancreatitis.
    Author: Tandan M, Reddy DN, Talukdar R, Vinod K, Santosh D, Lakhtakia S, Gupta R, Ramchandani MJ, Banerjee R, Rakesh K, Varadaraj G, Rao GV.
    Journal: Gastrointest Endosc; 2013 Nov; 78(5):726-33. PubMed ID: 23891416.
    Abstract:
    BACKGROUND: Long-term results of extracorporeal shockwave lithotripsy (ESWL) for large pancreatic duct (PD) stones in patients with idiopathic calcific pancreatitis (CP) are scanty. OBJECTIVE: To evaluate intermediate and long-term results of ESWL in a large cohort of patients with idiopathic CP. DESIGN: Cross-sectional study; retrospective chart review. SETTING: A high-volume, tertiary-care center for endoscopy and GI diseases. PATIENTS: A total of 636 patients with idiopathic CP who underwent ESWL and ERCP were followed-up. Patients were divided into intermediate (24-60 months) and long-term (>60 months) follow-up groups. INTERVENTION: ESWL and ERCP. MAIN OUTCOME MEASUREMENTS: Improvement in pain, analgesic use, hospitalization for pain, recurrence of calculi, need for additional intervention, and quality of life. RESULTS: A total of 636 of 1006 patients who underwent ESWL between 2004 and 2009 were followed for a maximum of 96 months. There were 364 patients in the intermediate follow-up group and 272 in the long-term follow-up group. After ESWL and ERCP, absence of pain was seen in 250 patients (68.7%), mild-to-moderate pain in 94 patients (25.4%), and severe pain in 20 patients (5.5%) of the intermediate group. In the long-term group, 164 patients (60.3%) had no pain, 97 patients (35.7%) had mild or moderate episodes of pain, whereas 11 patients (4.04%) had episodic severe pain. Recurrence of calculi was seen in 51 patients (14.01%) in the intermediate follow-up group and in 62 patients (22.8%) in the long-term group. Quality of life improved in a significant number of patients in both groups. LIMITATIONS: Retrospective study, single center, recall bias, and subjective pain and quality-of-life measurement scale. CONCLUSION: ESWL for large PD calculi offers good results in patients of idiopathic CP on intermediate and long-term follow-up.
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